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EP0531067
European procedure
Extract from the Register of European Patents
EP About this file: EP0531067
| EP0531067 - Monitoring film fouling in a process stream [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 01.11.1996 Database last updated on 30.07.2024 | Most recent event Tooltip | 30.12.1999 | Lapse of the patent in a contracting state New state(s): LU | published on 16.02.2000 [2000/07] | Applicant(s) | For all designated states NALCO CHEMICAL COMPANY One Nalco Center Naperville, IL 60563-1198 / US | [N/P] |
| Former [1993/10] | For all designated states NALCO CHEMICAL COMPANY One Nalco Center Naperville Illinois 60563-1198 / US | Inventor(s) | 01 /
Banks Rodney H. 1597 Whitley Road Naperville, Illinois 60563 / US | 02 /
Wetegrove, Robert L. P.O. Box 464 Winfield, Illinois 60190 / US | [1993/10] | Representative(s) | Harrison, David Christopher, et al Mewburn Ellis LLP City Tower 40 Basinghall Street London EC2V 5DE / GB | [N/P] |
| Former [1993/10] | Harrison, David Christopher, et al MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP / GB | Application number, filing date | 92307865.3 | 28.08.1992 | [1993/10] | Priority number, date | US19910754016 | 03.09.1991 Original published format: US 754016 | [1993/10] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0531067 | Date: | 10.03.1993 | Language: | EN | [1993/10] | Type: | B1 Patent specification | No.: | EP0531067 | Date: | 27.12.1995 | Language: | EN | [1995/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 09.01.1993 | Classification | IPC: | G01B11/06 | [1993/10] | CPC: |
G01B11/0616 (EP,US)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, NL, SE [1993/10] | Title | German: | Überwachung des Films der Verschmutzung in einem Prozessstrom | [1993/10] | English: | Monitoring film fouling in a process stream | [1993/10] | French: | Détection d'un film d'encrassement dans un courant de traitement | [1993/10] | Examination procedure | 10.05.1993 | Examination requested [1993/28] | 26.10.1994 | Despatch of a communication from the examining division (Time limit: M04) | 12.12.1994 | Reply to a communication from the examining division | 24.01.1995 | Despatch of communication of intention to grant (Approval: Yes) | 01.06.1995 | Communication of intention to grant the patent | 24.08.1995 | Fee for grant paid | 24.08.1995 | Fee for publishing/printing paid | Opposition(s) | 28.09.1996 | No opposition filed within time limit [1996/51] | Fees paid | Renewal fee | 23.08.1994 | Renewal fee patent year 03 | 22.08.1995 | Renewal fee patent year 04 |
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| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Lapses during opposition Tooltip | CH | 27.12.1995 | LI | 27.12.1995 | LU | 31.08.1996 | [2000/07] |
| Former [1997/28] | CH | 27.12.1995 | |
| LI | 27.12.1995 | Documents cited: | Search | [A]US4492868 (JELVESTAM ROLAND E [SE], et al); | [A]US4906101 (LIN ELLEN Y [US], et al); | [A]US4912332 (SIEBEL MAARTEN A [IN], et al) |